TCT-135 The index of microvascular resistance as a surrogate for myocardial infarct extension and microvascular obstruction in patients with ST elevation myocardial infarction treated by primary angioplasty

The index of microcirculatory resistance (IMR) is an invasive surrogate of coronary microvascular function and and an early marker of cardiac recovery, after acute ST elevation myocardial infarction (STEMI), as evaluated by echocardiography. Our purpose in the current study was to confirm its